1 /* 2 * Copyright © 2013 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 #ifndef _INTEL_DSI_H 25 #define _INTEL_DSI_H 26 27 #include <drm/drmP.h> 28 #include <drm/drm_crtc.h> 29 #include "intel_drv.h" 30 31 struct intel_dsi_device { 32 unsigned int panel_id; 33 const char *name; 34 const struct intel_dsi_dev_ops *dev_ops; 35 void *dev_priv; 36 }; 37 38 struct intel_dsi_dev_ops { 39 bool (*init)(struct intel_dsi_device *dsi); 40 41 void (*panel_reset)(struct intel_dsi_device *dsi); 42 43 void (*disable_panel_power)(struct intel_dsi_device *dsi); 44 45 /* one time programmable commands if needed */ 46 void (*send_otp_cmds)(struct intel_dsi_device *dsi); 47 48 /* This callback must be able to assume DSI commands can be sent */ 49 void (*enable)(struct intel_dsi_device *dsi); 50 51 /* This callback must be able to assume DSI commands can be sent */ 52 void (*disable)(struct intel_dsi_device *dsi); 53 54 int (*mode_valid)(struct intel_dsi_device *dsi, 55 struct drm_display_mode *mode); 56 57 bool (*mode_fixup)(struct intel_dsi_device *dsi, 58 const struct drm_display_mode *mode, 59 struct drm_display_mode *adjusted_mode); 60 61 void (*mode_set)(struct intel_dsi_device *dsi, 62 struct drm_display_mode *mode, 63 struct drm_display_mode *adjusted_mode); 64 65 enum drm_connector_status (*detect)(struct intel_dsi_device *dsi); 66 67 bool (*get_hw_state)(struct intel_dsi_device *dev); 68 69 struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi); 70 71 void (*destroy) (struct intel_dsi_device *dsi); 72 }; 73 74 struct intel_dsi { 75 struct intel_encoder base; 76 77 struct intel_dsi_device dev; 78 79 struct intel_connector *attached_connector; 80 81 /* if true, use HS mode, otherwise LP */ 82 bool hs; 83 84 /* virtual channel */ 85 int channel; 86 87 /* Video mode or command mode */ 88 u16 operation_mode; 89 90 /* number of DSI lanes */ 91 unsigned int lane_count; 92 93 /* video mode pixel format for MIPI_DSI_FUNC_PRG register */ 94 u32 pixel_format; 95 96 /* video mode format for MIPI_VIDEO_MODE_FORMAT register */ 97 u32 video_mode_format; 98 99 /* eot for MIPI_EOT_DISABLE register */ 100 u8 eotp_pkt; 101 u8 clock_stop; 102 103 u8 escape_clk_div; 104 u32 port_bits; 105 u32 bw_timer; 106 u32 dphy_reg; 107 u32 video_frmt_cfg_bits; 108 u16 lp_byte_clk; 109 110 /* timeouts in byte clocks */ 111 u16 lp_rx_timeout; 112 u16 turn_arnd_val; 113 u16 rst_timer_val; 114 u16 hs_to_lp_count; 115 u16 clk_lp_to_hs_count; 116 u16 clk_hs_to_lp_count; 117 118 u16 init_count; 119 120 /* all delays in ms */ 121 u16 backlight_off_delay; 122 u16 backlight_on_delay; 123 u16 panel_on_delay; 124 u16 panel_off_delay; 125 u16 panel_pwr_cycle_delay; 126 }; 127 128 static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder) 129 { 130 return container_of(encoder, struct intel_dsi, base.base); 131 } 132 133 extern void vlv_enable_dsi_pll(struct intel_encoder *encoder); 134 extern void vlv_disable_dsi_pll(struct intel_encoder *encoder); 135 extern u32 vlv_get_dsi_pclk(struct intel_encoder *encoder, int pipe_bpp); 136 137 extern struct intel_dsi_dev_ops vbt_generic_dsi_display_ops; 138 139 #endif /* _INTEL_DSI_H */ 140